191113424 has 20 divisors (see below), whose sum is σ = 371731044. Its totient is φ = 95182848.

The previous prime is 191113379. The next prime is 191113441. The reversal of 191113424 is 424311191.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 131515024 + 59598400 = 11468^2 + 7720^2 .

It is a junction number, because it is equal to n+sod(n) for n = 191113393 and 191113402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19127 + ... + 27350.

Almost surely, 2^191113424 is an apocalyptic number.

It is an amenable number.

191113424 is a deficient number, since it is larger than the sum of its proper divisors (180617620).

191113424 is a wasteful number, since it uses less digits than its factorization.

191113424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46742 (or 46736 counting only the distinct ones).

The product of its digits is 864, while the sum is 26.

The square root of 191113424 is about 13824.3778883536. The cubic root of 191113424 is about 576.0104968509.

The spelling of 191113424 in words is "one hundred ninety-one million, one hundred thirteen thousand, four hundred twenty-four".